2398856 has 8 divisors (see below), whose sum is σ = 4497870. Its totient is φ = 1199424.

The previous prime is 2398849. The next prime is 2398861. The reversal of 2398856 is 6588932.

It can be written as a sum of positive squares in only one way, i.e., 1865956 + 532900 = 1366^2 + 730^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149921 + ... + 149936.

2^2398856 is an apocalyptic number.

It is an amenable number.

2398856 is a deficient number, since it is larger than the sum of its proper divisors (2099014).

2398856 is a wasteful number, since it uses less digits than its factorization.

2398856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299863 (or 299859 counting only the distinct ones).

The product of its digits is 103680, while the sum is 41.

The square root of 2398856 is about 1548.8240700609. The cubic root of 2398856 is about 133.8653135440.

The spelling of 2398856 in words is "two million, three hundred ninety-eight thousand, eight hundred fifty-six".